Renesas RL78/I1A User Manual page 46

RL78/I1A
R01UH0363EJ0100 Rev. 1.00
March 23, 2012
Action:
Try the following:
 Disconnect the USB connector, then insert the USB connector again.
 Connect the USB connector to another port of the USB hub.
If the same symptom occurs, do not use the USB hub, but directly connect the
connector to the USB port of the personal computer.

When this product is connected with a personal computer, the "Add
New Hardware Wizard" screen is displayed
Cause:
If the USB connector of this product is not inserted into the USB port used at the
installation time but into another USB port, this product may be recognized as a
new hardware item.
Action:
Install the driver by referring to Chapter 6 Software Installation.

Communication with the RL78/I1A DC/DC LED Control Evaluation Board
is disabled
Cause:
The driver may not be installed correctly.
Action:
Check if the USB driver is installed correctly by referring to Chapter 6 Software
Installation.
Cause:
The COM port selected via the "Port list box" within device setup menu of
WriteEZ5 may not be set correctly.
Action:
Set the port checked using Device Manager.
Cause:
The RL78/I1A DC/DC LED Control Evaluation Board is operating in Virtual UART
mode.
Action:
Set the board to the On-Board Debugging / Flash Programming mode.
Cause:
The PRM file selected in [Device Setup] may be incorrect.
Action:
Use the corresponding PRM file that matches the target device. For information
about the PRM file, refer to Chapter 7 How to Use WriteEZ5 Flash
Programming Software.
Chapter 9 Troubleshooting
37